GoQR — Free QR Code Generator and Decoder API (No Key)

TL;DR

GoQR is a straightforward QR code API that does two things: generate QR code images from text/URLs with configurable size, and decode QR codes by uploading their image. Specify data content and dimensions, and it returns a PNG, SVG, or EPS QR code. No API key, no rate limits published, no signup — just append query parameters to the endpoint.

Quick start: http://goqr.me/api/qrdata?text=hello&size=100x100

No API key needed — just make a request!

Generate a QR code for "hello" (100x100): http://goqr.me/api/qrdata?text=hello&size=100x100

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How to Use This API

1. Generate QR Code Image

Specify the data text and image dimensions:

http://goqr.me/api/qrdata?text=https://example.com&size=200x200

Parameters: text (URL-encoded data), size (width x height in pixels), and optional format (png, svg, eps). Default output is PNG.

2. Create QR as SVG (Scalable Vector)

http://goqr.me/api/qrdata?text=Hello+World&format=svg

SVG format produces crisp QR codes at any size, ideal for print use.

3. JavaScript — Generate and Display QR

const data = 'https://free-api-explorer.pages.dev';
const qrUrl = `http://goqr.me/api/qrdata?text=${encodeURIComponent(data)}&size=150x150`;

const img = document.createElement('img');
img.src = qrUrl;
img.alt = 'QR Code for ' + data;
document.body.appendChild(img);

4. Python — Generate and Save QR

import requests

text = 'https://github.com'
params = {'text': text, 'size': '300x300'}
resp = requests.get('http://goqr.me/api/qrdata', params=params)

with open('github_qr.png', 'wb') as f:
    f.write(resp.content)
print(f'Saved QR code for {text}')

Frequently Asked Questions

What data can I encode in the QR code?: Any text — URLs, plain text, phone numbers, SMS messages, email addresses, Wi-Fi credentials, or vCard contact info. URL-encode the data for special characters.
What output formats are available?: PNG (default), SVG, and EPS. PNG is best for web display, SVG for scalable/print use, EPS for professional publishing software.
What size QR codes can I generate?: The size parameter accepts pixel dimensions like 100x100, 200x200, up to at least 500x500. The actual QR code will fit within the square.
Do I need an API key?: No. GoQR is completely free with no registration or authentication needed.
Can I decode/read QR codes?: Yes, GoQR also supports decoding. Upload a QR code image via POST to the decode endpoint and it returns the encoded text.
Are there rate limits?: No published rate limits. The service is free for reasonable personal and commercial use.

API Details

API URL: http://goqr.me/api/qrdata
Documentation: goqr.me/api
Category: Development
Authentication: Not Required
Geographic Coverage: Global

What You Can Build

Dynamic QR code generator for event badges and conference tickets
URL shortener with companion QR codes for easy sharing
Wi-Fi credential QR generator for guest network access
Bulk QR code creator for product inventory labels
QR code decoder tool embedded in a mobile-friendly web app